Adds a view to the receiver’s subviews so it’s displayed above its siblings.
Original signature is '- (void)addSubview:(NSView *)aView'
Available in Mac OS X v10.0 and later.


- aView (NSView)
- The view to add to the receiver as a subview.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)